diff --git a/jingle/extension/source/org/jivesoftware/smackx/jingle/nat/TransportNegotiator.java b/jingle/extension/source/org/jivesoftware/smackx/jingle/nat/TransportNegotiator.java
index 1896e4252..d6232767c 100644
--- a/jingle/extension/source/org/jivesoftware/smackx/jingle/nat/TransportNegotiator.java
+++ b/jingle/extension/source/org/jivesoftware/smackx/jingle/nat/TransportNegotiator.java
@@ -333,9 +333,9 @@ public abstract class TransportNegotiator extends JingleNegotiator {
 
                     }
 
-                    for (int i = 0; i < 2; i++) {
+                    for (int i = 0; i < 6; i++) {
                         try {
-                            Thread.sleep(1000);
+                            Thread.sleep(500);
                         }
                         catch (InterruptedException e) {
                             e.printStackTrace();